While all the other countries in the region matter, in what is a complicated diplomatic jigsaw puzzle, the key states look to be Indonesia, Malaysia and Singapore. These three sit astride the Strait of Malacca, which at its narrowest is only 1.7 miles across. Every day through that strait come 12 million barrels of oil heading for an increasingly thirsty China and elsewhere in the region. As long as these three countries are pro-American, the Americans have a key advantage.

